cost
单词辨析：
指付给专业人员的服务费， 也可指为加入某组织或做某事而支付的费用。
doctor's/lawyer's fees
医生诊费/律师费
membership fee
会费
He was looking for a part-time job in order to pay his school fees next semester.
为了交下一学期的学费，他在找兼职。
指商家对欲购买其商品或服务的买者收取的费用。
The seller will send the goods to your house for an extra charge.
卖家会送货上门，但是要收取一笔额外费用。
Gas charges won't change until the end of this year.
今年年底之前煤气费不会发生变化。
指为购买商品、完成某事或生产产品而支付的款项。
The total cost of this picnic was about 200 yuan.
这次野餐的全部费用大约200元。
He insisted that he pay for the cost of the taxi.
他坚持由他来付打车的钱。
指乘坐火车、汽车、飞机等交通工具的费用。
He has no money to pay his air fare to London.
他没钱买去伦敦的机票。
Children under 14 travel at half fare.
14岁以下儿童票价减半。
指消费者为购买某种商品或服务而需要支付的钱。
retail prices
零售价
The price of a coat in that mall is almost half my monthly salary.
那个商场里一件大衣的价格几乎是我每月工资的一半。
指额外付给餐厅侍者等服务人员的小额服务费。
The waiter received a big tip.
那名服务生得到了一大笔小费。
Is it customary in the United States to leave a tip for every meal?
在美国有每餐之后都给小费的习俗吗？
普通用词，指花费金钱、时间、精力等，主语通常为人或机构，常用于 spend sth on sth/(in) doing sth 结构中。
She spent 600 dollars on the watch.
她买这块手表花了600美元。
I love to cook, but I don't feel like spending the energy to do it every day.
我喜欢烹饪，但不愿意每天都花精力去做。
Apart from school work, he spends his spare time (in) singing and angling.
除了做学校功课之外，业余时间他喜爱唱歌和钓鱼。
主语通常为事物，可后接双宾语，通常不用被动语态。
The new house cost me a lot of money.
新房子花了我好多钱。
His error will cost him points on the test.
他的失误会使他在测验中丢分。
Dangerous driving could cost you your life.
开车不注意安全会有生命危险。
主语可以是人，也可以是事物，通常以 it 作形式主语，可后接双宾语。
It took me an hour to come here.
到这里来花了我一个小时。
It may take a long time to find a solution to the problem.
也许要花很长时间才能找到解决该问题的办法。
The alterations to your coat will take a week or so.
改你的外套需要一个星期左右。
He took half an hour to solve the riddle.
他用了半个小时猜出谜底。
相关例句：
The price is under first cost.
这价格低于成本。
The cost of a loaf of bread has increased five-fold
一条面包的价钱增长了4倍。
This book is of such importance that it must be published at any cost
这本书非常重要，无论如何也要出版。
Kathryn knows to her cost the effect of having served a jail sentence
凯瑟琳吃了苦头才知道服过刑会给一个人带来什么影响。
The high cost of borrowing is inhibiting investment by industry in new equipment.
借款的高成本抑制了企业对新设备的投资。
He ordered the army to recapture the camp at any cost.
他命令军队无论如何也要夺回营地。